diff --git a/DockerMakefiles/DockerMake.yml b/DockerMakefiles/DockerMake.yml
index 16a6327..703ee8f 100644
--- a/DockerMakefiles/DockerMake.yml
+++ b/DockerMakefiles/DockerMake.yml
@@ -18,7 +18,6 @@ _ALL_:
   - moldesign_minimal
   - moldesign_minimal_py2
   - moldesign_notebook
-  - nucleic_acid_builder
   - nwchem_build
   - openblas
   - pyscf_build
diff --git a/DockerMakefiles/Moldesign.yml b/DockerMakefiles/Moldesign.yml
index 6ae254e..61da0e9 100644
--- a/DockerMakefiles/Moldesign.yml
+++ b/DockerMakefiles/Moldesign.yml
@@ -70,7 +70,7 @@ moldesign_stack:
  requires:
   - opsin
   - symmol_base
-  - nucleic_acid_builder
+  - ambertools
   - moldesign_notebook
  build: |
    USER nbuser